Added 2 components and Fixed travis ci and nvm config files

[Weffe]

Changes:

• Config files are properly set to work with Node
  • .travis.yml
  • .nvmrc
• Stopwatch component is added
• Chart component is added

[Weffe]

Please double check that the changes made should not affect the develop branch. I don't think they will so it can be merged just fine.

If you guys approve, we can merge. I also think that we should consider merging the develop branch back to master to update it.

[Weffe]

Got the okay to merge this pull request from Tim 👍